20 18. According to the relevant investigation data, the fifth phase of Lanhuahua Project was developed and constructed by Yinchuan Roy Investment Industry (Group) Co., Ltd. in 20 14, and the delivery date stipulated in the contract was 20 18. Yinchuan, referred to as Yin for short, is the capital of Ningxia Hui Autonomous Region and an important central city in northwest China approved by the State Council. silver